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Systemic Problems: A perspective on stem cell aging and rejuvenation

Irina M Conboy1, Michael J Conboy1, Justin Rebo1

  • 1Department of Bioengineering, UC Berkeley; QB3, CA 94709, USA.

Aging
|November 6, 2015
PubMed

Insights

This review analyzes systemic regulation of young and old tissue stem cells, exploring therapies for age-related diseases. It highlights rejuvenation strategies beyond parabiosis, aiming to reverse human tissue aging.

Area of Science:

  • Gerontology and regenerative medicine
  • Stem cell biology and aging

Background:

  • Aging tissue stem cells contribute to age-related degenerative pathologies.
  • Systemic factors influence stem cell function and tissue homeostasis.
  • Rejuvenation strategies are crucial for combating age-related decline.

Purpose of the Study:

  • To provide a balanced analysis of advances in systemic regulation of young and old tissue stem cells.
  • To suggest strategies for accelerating the development of therapies for age-related tissue degenerative pathologies.
  • To explore molecular approaches for rejuvenating multiple old organs.

Main Methods:

  • Review of recent literature on systemic tissue rejuvenation.
  • Analysis of parabiosis experiments and their limitations.
  • Evaluation of molecular approaches for organ rejuvenation.

Main Results:

  • Parabiosis studies show promise but often lack defined molecular mechanisms.
  • Molecular approaches offer a path beyond parabiosis for multi-organ rejuvenation.
  • Progress is being made in understanding systemic regulation of stem cells.

Conclusions:

  • Attenuating or reversing human tissue aging is achievable through defined molecular strategies.
  • Further research into systemic regulation can accelerate therapeutic development.
  • A combination of approaches may be necessary for comprehensive rejuvenation.
Keywords:
agingneurogenesisparabiosisrejuvenationstem cells

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